What to hear: It may be a small ensemble, but the City Chamber Orchestra is big on sound and virtuosity. Made up of professional musicians with a taste for intimate concerts, the CCO has carved its own niche in our cultural scene with a diverse repertoire of baroque chamber music, classical concertos and contemporary offerings. Put its two forthcoming concerts into your diary - Vienna in Hong Kong will feature Rainer Honeck, concertmaster of the Vienna Philharmonic Orchestra, and The Dazzling Harp will see Macau-based conductor Veiga Jardim make a return appearance with the elegant harpist Katerina Englichova (right). Vienna In Hong Kong, October 28, 8pm, City Hall Theatre. $120 to $180. The Dazzling Harp, November 16, 8pm, City Hall Concert Hall. $120 to $250. Urbtix (2734 9009). What to see: Poster Power, an exhibition which unveils on Monday at the Hong Kong Heritage Museum, gives the humble poster its day in the sun and proves that a commercial tool can also be fine art, as well as an important part of popular culture. The show features works by internationally renowned designers and the best that Hong Kong has to offer, including Freeman Lau and Max Cheung. Until March 31, 2002. Hong Kong Heritage Museum. 1 Man Lam Road, Sha Tin. Mon to Sat, 10am-6pm, Sun 10am-7pm. Closed Tues. Admission $10. What to see: It was a broadway hit with Carol Channing in 1964. It was a cinema blockbuster with Barbra Streisand in 1967. Now, more than 40 years later, The Hong Kong Singers will interpret the classic Hello Dolly!. Directed by Ian Robinson, the Singers' production touts a cast of 50 singers and dancers, and sets and costumes flown in from Hollywood. Based on Jerry Herman's Broadway version about a New York matchmaker in the late 19th century, Dolly Gallagher Levi has been hired to find a new bride for a widowed half-millionaire. It's not long before she decides she is the perfect match for him and his fortunes. But the show is best remembered for its catchy tunes such as Ribbons Down My Back and the perennial favourite Hello, Dolly!. October 31 to November 2, 7.30pm. November 3 to 4, 2.30pm. City Hall Theatre. $190 to $270. Urbtix (2734 9009).